What are you trying to achieve by blocking the computer when it is off the network?

I agree, what's your goal here.

Just to throw something out there, if you use managed switches, they can be configured to send an snmp trap (alert) message when a device is unplugged or plugged into a switch port. All you need is an snmp trap software to collect these alerts. But you will get the same alert message if someone reboots their computer too, so it may not be 100 percent accurate in reporting.

What are you trying to achieve by blocking the computer when it is off the network?

They take the computers off the network to play games without being monitored or to simply avoid having the computers controlled.

LANSchool has a feature that detects network tampering and will lock the screen. I'll further note that Stoneware added this in after we requested this feature. They have made other adjustments as requested, so I give them very high marks on responsiveness.

What are you trying to achieve by blocking the computer when it is off the network?

I agree, what's your goal here.

Just to throw something out there, if you use managed switches, they can be configured to send an snmp trap (alert) message when a device is unplugged or plugged into a switch port. All you need is an snmp trap software to collect these alerts. But you will get the same alert message if someone reboots their computer too, so it may not be 100 percent accurate in reporting.

A few summers ago, I went through a lab which "lacked supervision" and discovered that some students had cut open a section of patch cable and stripped and twisted some wires together so they could remove themselves from the network without having to unplug from the wall.

On a related note I recently ran into one of those kids working at the local supermarket. He so proudly noted how all he did was play games in shop and when we started to block them, they just pulled the computer off the network. yep, he'll have a great future in groceries.

As Richard Cranium mentioned, when configured to use LanSchool’s “Network Tampering” feature, the student computer will enter a locked state when network connectivity is lost. Additionally, teachers can also monitor all student screens at once and can be alerted when a student device is disconnected. They can also limit what applications and websites can be accessed.﻿ Let me know if you have any questions!